Shoe-nail



(No Model.)

" WITNEEEIEEL NVEN R his UNITE STATES PATENT OFFICE.

DAVID S. GRANT, OF LAWRENCE, MASSACHUSETTS.

SHOE-NAIL.

SPECIFICATION forming part of Letters Patent No. 377,805, dated February14-, 1888.

Application filed December 1, 1887. Serial No. 256,640. (No model.)

Figs'. 3 and 4. are respectively sections taken on lines a: and y, Fig.2.

This nail is made of the ordinary thickness or diameter from the pointor entering end upward for about onehalf its length. At that point itbroadens greatlyfforming a shoulder,

and the thickness or diameter is relativelyvery large between saidshoulder and the head of the nail. The lower thin portion of the nail Ihave lettered A, the upper thick portion B, and the shoulder G. Now,whenthis nail has been driven into ashoe-sole bysuitable machinery, thegreat thickness of this portion B of course has a tendency to preventthe sole from wearing away; but, what is more important, the

great length of said portion B makes it practically impossible that ashoe in any ordinary wear could wear the nail away up to the shoulder 0.An important feature about theshoulder is that it effectually preventsthe nail from working up into the foot.-

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

The herein-described improved shoe-nail, consisting, essentially, of therelatively thin lower or entering portion, A, of even thickness ordiameter above the point, and the relatively thick upper portion orshank, B, of even thickness or diameter, substantially as and-for thepurpose set forth. 7

' DAVID S. GRANT.

' Witnesses:

FRANK G. PARKER, J. M. HARTNETT.

